List of usage examples for java.util.jar JarEntry getMethod
public int getMethod()
From source file:Main.java
public static void main(String[] args) throws IOException { JarFile jf = new JarFile("a.jar"); Enumeration e = jf.entries(); while (e.hasMoreElements()) { JarEntry je = (JarEntry) e.nextElement(); System.out.println(je.getName()); long uncompressedSize = je.getSize(); long compressedSize = je.getCompressedSize(); long crc = je.getCrc(); int method = je.getMethod(); String comment = je.getComment(); System.out.println(new Date(je.getTime())); System.out.println("from " + uncompressedSize + " bytes to " + compressedSize); if (method == ZipEntry.STORED) { System.out.println("ZipEntry.STORED"); } else if (method == ZipEntry.DEFLATED) { System.out.println(ZipEntry.DEFLATED); }//ww w .ja va2s .co m System.out.println("Its CRC is " + crc); System.out.println(comment); System.out.println(je.isDirectory()); Attributes a = je.getAttributes(); if (a != null) { Object[] nameValuePairs = a.entrySet().toArray(); for (int j = 0; j < nameValuePairs.length; j++) { System.out.println(nameValuePairs[j]); } } System.out.println(); } }
From source file:MainClass.java
public static void main(String[] args) throws IOException { JarFile jf = new JarFile(args[0]); Enumeration e = jf.entries(); while (e.hasMoreElements()) { JarEntry je = (JarEntry) e.nextElement(); String name = je.getName(); Date lastModified = new Date(je.getTime()); long uncompressedSize = je.getSize(); long compressedSize = je.getCompressedSize(); int method = je.getMethod(); if (method == ZipEntry.STORED) { System.out.println(name + " was stored at " + lastModified); System.out.println("with a size of " + uncompressedSize + " bytes"); } else if (method == ZipEntry.DEFLATED) { System.out.println(name + " was deflated at " + lastModified); System.out.println("from " + uncompressedSize + " bytes to " + compressedSize + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%"); } else {// www . j av a2 s . c om System.out.println(name + " was compressed using an unrecognized method at " + lastModified); System.out.println("from " + uncompressedSize + " bytes to " + compressedSize + " bytes, a savings of " + (100.0 - 100.0 * compressedSize / uncompressedSize) + "%"); } } }
From source file:com.jrummyapps.busybox.signing.ZipSigner.java
/** Copy all the files in a manifest from input to output. */ private static void copyFiles(Manifest manifest, JarFile in, JarArchiveOutputStream out, long timestamp) throws IOException { final byte[] buffer = new byte[4096]; int num;/*from w ww . java 2 s . c o m*/ final Map<String, Attributes> entries = manifest.getEntries(); final List<String> names = new ArrayList<>(entries.keySet()); Collections.sort(names); for (final String name : names) { final JarEntry inEntry = in.getJarEntry(name); if (inEntry.getMethod() == JarArchiveEntry.STORED) { // Preserve the STORED method of the input entry. out.putArchiveEntry(new JarArchiveEntry(inEntry)); } else { // Create a new entry so that the compressed len is recomputed. final JarArchiveEntry je = new JarArchiveEntry(name); je.setTime(timestamp); out.putArchiveEntry(je); } final InputStream data = in.getInputStream(inEntry); while ((num = data.read(buffer)) > 0) { out.write(buffer, 0, num); } out.flush(); out.closeArchiveEntry(); } }
From source file:net.sf.keystore_explorer.crypto.signing.JarSigner.java
private static void writeJarEntries(JarFile jar, JarOutputStream jos, String signatureName) throws IOException { for (Enumeration<?> jarEntries = jar.entries(); jarEntries.hasMoreElements();) { JarEntry jarEntry = (JarEntry) jarEntries.nextElement(); if (!jarEntry.isDirectory()) { String entryName = jarEntry.getName(); // Signature files not to write across String sigFileLocation = MessageFormat.format(METAINF_FILE_LOCATION, signatureName, SIGNATURE_EXT) .toUpperCase();// www .j a v a 2 s .c o m String dsaSigBlockLocation = MessageFormat.format(METAINF_FILE_LOCATION, signatureName, DSA_SIG_BLOCK_EXT); String rsaSigBlockLocation = MessageFormat.format(METAINF_FILE_LOCATION, signatureName, RSA_SIG_BLOCK_EXT); // Do not write across existing manifest or matching signature files if ((!entryName.equalsIgnoreCase(MANIFEST_LOCATION)) && (!entryName.equalsIgnoreCase(sigFileLocation)) && (!entryName.equalsIgnoreCase(dsaSigBlockLocation)) && (!entryName.equalsIgnoreCase(rsaSigBlockLocation))) { // New JAR entry based on original JarEntry newJarEntry = new JarEntry(jarEntry.getName()); newJarEntry.setMethod(jarEntry.getMethod()); newJarEntry.setCompressedSize(jarEntry.getCompressedSize()); newJarEntry.setCrc(jarEntry.getCrc()); jos.putNextEntry(newJarEntry); InputStream jis = null; try { jis = jar.getInputStream(jarEntry); byte[] buffer = new byte[2048]; int read = -1; while ((read = jis.read(buffer)) != -1) { jos.write(buffer, 0, read); } jos.closeEntry(); } finally { IOUtils.closeQuietly(jis); } } } } }
From source file:org.apache.pluto.util.assemble.io.JarStreamingAssembly.java
/** * Reads the source JarInputStream, copying entries to the destination JarOutputStream. * The web.xml and portlet.xml are cached, and after the entire archive is copied * (minus the web.xml) a re-written web.xml is generated and written to the * destination JAR.//from www . j a v a 2 s .c o m * * @param source the WAR source input stream * @param dest the WAR destination output stream * @param dispatchServletClass the name of the dispatch class * @throws IOException */ public static void assembleStream(JarInputStream source, JarOutputStream dest, String dispatchServletClass) throws IOException { try { //Need to buffer the web.xml and portlet.xml files for the rewritting JarEntry servletXmlEntry = null; byte[] servletXmlBuffer = null; byte[] portletXmlBuffer = null; JarEntry originalJarEntry; //Read the source archive entry by entry while ((originalJarEntry = source.getNextJarEntry()) != null) { final JarEntry newJarEntry = smartClone(originalJarEntry); originalJarEntry = null; //Capture the web.xml JarEntry and contents as a byte[], don't write it out now or //update the CRC or length of the destEntry. if (Assembler.SERVLET_XML.equals(newJarEntry.getName())) { servletXmlEntry = newJarEntry; servletXmlBuffer = IOUtils.toByteArray(source); } //Capture the portlet.xml contents as a byte[] else if (Assembler.PORTLET_XML.equals(newJarEntry.getName())) { portletXmlBuffer = IOUtils.toByteArray(source); dest.putNextEntry(newJarEntry); IOUtils.write(portletXmlBuffer, dest); } //Copy all other entries directly to the output archive else { dest.putNextEntry(newJarEntry); IOUtils.copy(source, dest); } dest.closeEntry(); dest.flush(); } // If no portlet.xml was found in the archive, skip the assembly step. if (portletXmlBuffer != null) { // container for assembled web.xml bytes final byte[] webXmlBytes; // Checks to make sure the web.xml was found in the archive if (servletXmlBuffer == null) { throw new FileNotFoundException( "File '" + Assembler.SERVLET_XML + "' could not be found in the source input stream."); } //Create streams of the byte[] data for the updater method final InputStream webXmlIn = new ByteArrayInputStream(servletXmlBuffer); final InputStream portletXmlIn = new ByteArrayInputStream(portletXmlBuffer); final ByteArrayOutputStream webXmlOut = new ByteArrayOutputStream(servletXmlBuffer.length); //Update the web.xml WebXmlStreamingAssembly.assembleStream(webXmlIn, portletXmlIn, webXmlOut, dispatchServletClass); IOUtils.copy(webXmlIn, webXmlOut); webXmlBytes = webXmlOut.toByteArray(); //If no compression is being used (STORED) we have to manually update the size and crc if (servletXmlEntry.getMethod() == ZipEntry.STORED) { servletXmlEntry.setSize(webXmlBytes.length); final CRC32 webXmlCrc = new CRC32(); webXmlCrc.update(webXmlBytes); servletXmlEntry.setCrc(webXmlCrc.getValue()); } //write out the assembled web.xml entry and contents dest.putNextEntry(servletXmlEntry); IOUtils.write(webXmlBytes, dest); if (LOG.isDebugEnabled()) { LOG.debug("Jar stream " + source + " successfully assembled."); } } else { if (LOG.isDebugEnabled()) { LOG.debug("No portlet XML file was found, assembly was not required."); } //copy the original, unmodified web.xml entry to the destination dest.putNextEntry(servletXmlEntry); IOUtils.write(servletXmlBuffer, dest); if (LOG.isDebugEnabled()) { LOG.debug("Jar stream " + source + " successfully assembled."); } } } finally { dest.flush(); dest.close(); } }
From source file:org.apache.pluto.util.assemble.io.JarStreamingAssembly.java
private static JarEntry smartClone(JarEntry originalJarEntry) { final JarEntry newJarEntry = new JarEntry(originalJarEntry.getName()); newJarEntry.setComment(originalJarEntry.getComment()); newJarEntry.setExtra(originalJarEntry.getExtra()); newJarEntry.setMethod(originalJarEntry.getMethod()); newJarEntry.setTime(originalJarEntry.getTime()); //Must set size and CRC for STORED entries if (newJarEntry.getMethod() == ZipEntry.STORED) { newJarEntry.setSize(originalJarEntry.getSize()); newJarEntry.setCrc(originalJarEntry.getCrc()); }/*from w ww. j a v a2s .c om*/ return newJarEntry; }
From source file:org.jahia.modules.serversettings.portlets.BasePortletHelper.java
static JarEntry cloneEntry(JarEntry originalJarEntry) { final JarEntry newJarEntry = new JarEntry(originalJarEntry.getName()); newJarEntry.setComment(originalJarEntry.getComment()); newJarEntry.setExtra(originalJarEntry.getExtra()); newJarEntry.setMethod(originalJarEntry.getMethod()); newJarEntry.setTime(originalJarEntry.getTime()); // Must set size and CRC for STORED entries if (newJarEntry.getMethod() == ZipEntry.STORED) { newJarEntry.setSize(originalJarEntry.getSize()); newJarEntry.setCrc(originalJarEntry.getCrc()); }/*from www.j a va2 s. c o m*/ return newJarEntry; }